http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Geophysics and geochemistry in the search for metallic ores
proceedings of Exploration 77 an international symposium held in Ottawa, Canada in October, 1977
Exploration 77 Symposium (1977 : Ottawa, Ont.)
811 pages, 4 unnumbered leaves of plates : illustrations (some color) ; 29 cm.
Economic geology report (Geological Survey of Canada) ; no. 31